Question

Which of the following do not develop from the mesoderm?

• A. bones
• B. muscle
• C. connective tissue
• D. brain

Answer 1

Answer: (D)

brain

Mesoderm is the middle of the three germ layers lying between the ectoderm and endoderm, which appears early in the development of an animal embryo. In vertebrates it subsequently gives rise to muscle, connective tissue, cartilage, bone, notochord, blood, bone marrow, lymphoid tissue, and to the epithelia of blood vessels, lymphatic vessels, body cavities, kidneys, ureters, gonads, genital ducts, adrenal cortex, and certain other tissues.